XG may refer to:
Xgl is an obsolete display server implementation supporting the X Window System protocol designed to take advantage of modern graphics cards via their OpenGL drivers, layered on top of OpenGL.
Xgrid is a proprietary program and distributed computing protocol developed by the Advanced Computation Group subdivision of Apple Inc that allows networked computers to contribute to a single task.
XGBoost is an open-source software library which provides the gradient boosting framework for C++, Java, Python, R, and Julia.
The XGameStation is a line of embedded systems, primarily designed as video game consoles, created by Andre LaMothe and sold by his company Nurve Networks LLC.
XGen Studios, Inc (stylized as XGen Studios) is an independent video game development studio based in Edmonton, Alberta, Canada.
The XGP (Extreme Game Player) was a concept portable video game system created by the Korean company GamePark as the follow-up to its GP32 handheld.
xG Technology, Inc. is a developer of technology for wireless communications and spectrum sharing. The company is headquartered in Sarasota, Florida with engineering facilities located in Fort Lauderdale, Florida.